v1.9.0 - December 22, 1994. The program won't exit from the interactive shell
if it's working from a tty. For example, it won't exit if you do an mget
on a pattern that won't match anything. Added padding around jmp_buf's
for SunOS. SunOS needs sigjmp_buf's, but plenty of OS's don't support
sigjmp_buf's yet. Fixed the tips to reflect the new archive site.
v1.8.9 - December 20, 1994. Can now set "passive" user variable, or use
passive command to toggle PASV/PORT ftp. Debug mode now prints remote
responses. Can now get around buggy FTP servers like boombox.micro.umn.edu,
that give back invalid port numbers to PASV.
v1.8.8 - December 19, 1994. Now falls back to port FTP if passive FTP fails.
